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A199907 as a simple table

na(n)
11
28
384
4448
53196
629864
7216530
81699268
914546928
10116482068
11950119628
127969545520
1365812921362
14546169532636
154575686136942
1638231452993064
17320077674218718
182689588505089064
1922606933344228744
20190257872374203952

[1,8,84,448,3196,29864,216530,1699268,14546928,
 116482068,950119628,7969545520,65812921362,
 546169532636,4575686136942,38231452993064,
 320077674218718,2689588505089064,
 22606933344228744,190257872374203952]